Quality Control Automation of IP Audio Codec Software

Abstract

Reasons for issues caused by latency spikes are described. Method of self-diagnostics of Internet Protocol (IP) audio codec software that is suitable for development, quality control, and operation and allows detecting these issues without external equipment and a special signal is demonstrated. The method of manual signal quality testing is mentioned. Based on that a method of automated testing using a second IP audio codec with specially modified software that allows detecting signal distortion in realistic network conditions is described. These methods simplify software quality control and accelerate the development of new versions of software, allowing detection of issues that are hard to detect with other methods.